Deserialization in Oracle Communications Cloud Native Core Network Function Environment
CVE-2018-15686
A vulnerability in unit_deserialize of systemd allows an attacker to supply arbitrary state across systemd re-execution via NotifyAccess. This can be used to improperly influence systemd execution and possibly lead to root privilege escalation. Affected releases are systemd versions up to and including 239.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Oracle Communications Cloud Native Core Network Function Environment — versions 1.4.0
- Systemd — versions unspecified
- Systemd Project
- Canonical Ubuntu Linux — versions 16.04, 18.04, 18.10
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.gentoo.org/glsa/201810-10 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/11/msg00017.html (mailing-list, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/105747 (VDB Entry, Third Party Advisory, vdb-entry)
- www.exploit-db.com/exploits/45714/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- usn.ubuntu.com/3816-1/ (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:2091 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:3222 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0593 (vendor-advisory, Third Party Advisory)
- lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e6… (mailing-list)
- www.oracle.com//security-alerts/cpujul2021.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-15686?
- CVE-2018-15686 is a high-severity vulnerability in Oracle Communications Cloud Native Core Network Function Environment, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2018-10-26.
- How severe is CVE-2018-15686?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2018-15686 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.